Multiply fabric.



No. 843,121.` PATENTBDMAR. 26, 1907. G. D. MUORE.

MULTIPLY FABRIC. Arrugnlon rILnn un za. 1904.

Wl 'VP/55555 l poses.

:UNITED STATES ETENT l OEErOE.

GEORGE D. MooRE, or WORCESTER, MASSACHUSETTS', ASSIGNOR To MULTIPLE WOVEN HOSE a RUBBER oo., or NEW YORK, N. Y., A,

CORPORATION OF NEW YORK.

MULTIPLY FABRIC.

i Application filed May 23,1

To all whom, it may concern,.-

Be it known that I, GEORGE D. MOORE, a citizen of the United States, residing at Worcester, in the county of AWorcester and State of Massachusetts, have'invented a new and useful Multiply Fabric, of which the following is a specification.

This invention relates to a new fabric designedfor use as belting or for similar pur- The especial object of this invention is to provide a plicated fabric in which the layers 0r plies of the fabric are joined so that the inner plies of the fabric will be firmly bound to form a comparatively rigid core, while the outside plies will be less firmly bound, permitting an easy flexure to be made' of the fabric as a whole without straining or distorting the fabric When the same is fiexed.

To these ends this invention consists of the plicated fabric as an article of manufacture and of thecombinations of parts therein, as hereinafter described, and more particularly pointed out in the claims at the end of this specification.

In the accompanying drawing, Figure 1 is a perspective side view of a piece of fabric made according to this inventionfor example, such a piece of fabric as would be shown in perspective'if cut on the line a a of Fig. 3. Fig. 2 is an enlarged longitudinal sectional4 view of the fabric, showing the arrangement' of threads therein; and Fig. 3 is a diagram? matic view showing the flattened tubular character of the fabric as a Whole.

In textile beltin particularlyin textile belting of considera le thickness, it is essential that the fabric as a whole should have sufficient strengthto resist the heavy tensile strains to which belting for the transmission of power is subjected, while, on the other hand, it 's equally important that the fabric asa whole should be pliable and readily bent or flexed without straining or rupturing the outside layers of the fabric.

A fabric for belting woven according to this invention preferably comprises flattened concentric tubes. In the present instance I' havefillustrated a fabric in which two concentric tubes are employed. The' outside tube forms the outside plies or layers of the completed four-ply fabric, and the inner tube forms the inside layers `of the completed four- I Specification of Letters Patent.

Patented Marches, 1907.

904. sena NQ. 209.245.

-ply fabric. These tubes maybe Woven simultaneously, and in order that they may be united to form a connected fabric of great tensile strength and at the same time which can bereadily bent or flexed I employ bindthrough both of the inner plies, but do not extend through the other outside ply.

In the completed fabric the inner plies are bound .by both series of binderew'arps, forming a comparatively stiff core of great tensile strength, while the outside plies are less firmly bound, permitting them to have a certain amount of stretch and give, whereby the fabric as a whole may be .readily bent or flexed, but will possess great strength.

Referring to the drawingsfor a detail description of the fabric herein illustrated, as 4shown in Fig. 1, the fabric comprises four layers A, B, O, and D, and these layers or plies may be formed of two `concentric tubes, as shown diagrammatically in Fig. 3. Each of the plies comprises Warp-threads 10 and filling-threads 11, Woven together in the ordinary way. Extending from the outside ply A through the lies B and() are bindingwarps or bindin lireads 12, and extending from the ly D t rough the plies O and B are binding-t reads or binding-Warps 13. the completed fabric the inside layers B and O are connected together by both series of binding-Warps 12 and 13, while the outside ply A is tied by the single set of binding-v Warps 12 and the .outside ply D is tied by the single set offbindin -Warps- 13. This produces a readily-fiexib e fabric, but one which has great strength' by reason of the comparative rigidity or firmness of its cen'- tral layers.

I am aware that changes may be made in practicing this invention by those who are skilled in the art. For exam le, it is not essential that the plies of the abrc should be woven in the form of concentric tubes, nor is it essential that the fabric should contain only four plies, as it is obvious that a greater or less number of plies may be associated to form a fabric according to the principles of this invention. I do not Wish, therefore, to

be limited to-the special fabric I have herein shown and described;- but What l do claim, and desire to secure by I Letters Patent ofthe United States, is-f c tendingfrom the outsi 1. As an article of manufacture, a plicated l fabriccomrising flattened concentric tubes,

the outer p ies at each side of the fabric having binding-threads .extending to an intermediate ply ofthe fabric located entirely at the opposite side of the central plane of the e ply at each side of fabric, whereby the fabric will have a central core consisting of a plurality of plies united together by a plurality of sets of binding-threads.

'3. As-an article of manufacture, a licated fabric for belting consisting of two attened concentric tubes, the outside plies having binding-threads .extending through to the intermediate ply at the other side of the central planev of the fabric, whereby the two inner plies will form a comparativel stiff core of great tensile strength, while t e outside plies will be less Afirmly fastened.

testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

` GEORGE D. MOORE. Witnesses:

PHrLiP SOUTHGATE, J. ELMER HALL. 

